Package org.drools.compiler

Examples of org.drools.compiler.RuleError

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                               container );

                // after building the predicate, we are done, so return
                return;
            } else {
                context.getErrors().add( new RuleError( context.getRule(),
                                                        fieldConstraintDescr,
                                                        null,
                                                        "Unable to create Field Extractor for '" + fieldName + "' of '"+pattern.getObjectType().toString()+"' in rule '"+context.getRule().getName()+"'" ) );
                return;
            }
        }

        Restriction restriction = createRestriction( context,
                                                     pattern,
                                                     fieldConstraintDescr,
                                                     fieldConstraintDescr.getRestriction(),
                                                     extractor );

        if ( restriction == null ) {
            // error was already logged during restriction creation failure
            return;
        }

        Constraint constraint = null;
        if ( restriction instanceof AbstractCompositeRestriction ) {
            constraint = new MultiRestrictionFieldConstraint( extractor,
                                                              restriction );
        } else if ( restriction instanceof LiteralRestriction ) {
            constraint = new LiteralConstraint( extractor,
                                                (LiteralRestriction) restriction );
        } else if ( restriction instanceof VariableRestriction ) {
            constraint = new VariableConstraint( extractor,
                                                 (VariableRestriction) restriction );
        } else if ( restriction instanceof ReturnValueRestriction ) {
            constraint = new ReturnValueConstraint( extractor,
                                                    (ReturnValueRestriction) restriction );
        } else {
            context.getErrors().add( new RuleError( context.getRule(),
                                                    fieldConstraintDescr,
                                                    null,
                                                    "This is a bug: Unkown restriction type '" + restriction.getClass() + "' for pattern '"+pattern.getObjectType().toString()+"' in rule '"+context.getRule().getName()+"'" ) );
        }
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                                                          pattern,
                                                          extractor,
                                                          fieldConstraintDescr,
                                                          restrictionDescr );
                if( restrictions[index] == null ) {
                    context.getErrors().add( new RuleError( context.getRule(),
                                                            fieldConstraintDescr,
                                                            null,
                                                            "Unable to create restriction '" + restrictionDescr.toString() + "' for field '"+ fieldConstraintDescr.getFieldName() +"' in the rule '" + context.getRule().getName() + "'" ) );
                }
                index++;
            }
        }

        if ( restrictions.length > 1 ) {
            AbstractCompositeRestriction composite = null;
            if ( top.getConnective() == RestrictionConnectiveDescr.AND ) {
                composite = new AndCompositeRestriction( restrictions );
            } else if ( top.getConnective() == RestrictionConnectiveDescr.OR ) {
                composite = new OrCompositeRestriction( restrictions );
            } else {
                context.getErrors().add( new RuleError( context.getRule(),
                                                        fieldConstraintDescr,
                                                        null,
                                                        "This is a bug: Impossible to create a composite restriction for connective: " + top.getConnective()+ "' for field '"+ fieldConstraintDescr.getFieldName() +"' in the rule '" + context.getRule().getName() + "'" ) );
            }

            return composite;
        } else if ( restrictions.length == 1 ) {
            return restrictions[0];
        }
        context.getErrors().add( new RuleError( context.getRule(),
                                                fieldConstraintDescr,
                                                null,
                                                "This is a bug: trying to create a restriction for an empty restriction list for field '"+ fieldConstraintDescr.getFieldName() +"' in the rule '" + context.getRule().getName() + "'" ) );
        return null;
    }
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                       final Pattern pattern,
                       final FieldBindingDescr fieldBindingDescr) {

        if ( context.getDeclarationResolver().isDuplicated( fieldBindingDescr.getIdentifier() ) ) {
            // This declaration already  exists, so throw an Exception
            context.getErrors().add( new RuleError( context.getRule(),
                                                    fieldBindingDescr,
                                                    null,
                                                    "Duplicate declaration for variable '" + fieldBindingDescr.getIdentifier() + "' in the rule '" + context.getRule().getName() + "'" ) );
            return;
        }
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    private VariableRestriction buildRestriction(final RuleBuildContext context,
                                                 final FieldExtractor extractor,
                                                 final FieldConstraintDescr fieldConstraintDescr,
                                                 final VariableRestrictionDescr variableRestrictionDescr) {
        if ( variableRestrictionDescr.getIdentifier() == null || variableRestrictionDescr.getIdentifier().equals( "" ) ) {
            context.getErrors().add( new RuleError( context.getRule(),
                                                    variableRestrictionDescr,
                                                    null,
                                                    "Identifier not defined for binding field '" + fieldConstraintDescr.getFieldName() + "'" ) );
            return null;
        }

        Declaration declaration = context.getDeclarationResolver().getDeclaration( variableRestrictionDescr.getIdentifier() );

        if ( declaration == null ) {
            // trying to create implicit declaration
            final Pattern thisPattern = (Pattern) context.getBuildStack().peek();
            final Declaration implicit = this.createDeclarationObject( context,
                                                                       variableRestrictionDescr.getIdentifier(),
                                                                       thisPattern );
            if ( implicit != null ) {
                declaration = implicit;
            } else {
                context.getErrors().add( new RuleError( context.getRule(),
                                                        variableRestrictionDescr,
                                                        null,
                                                        "Unable to return Declaration for identifier '" + variableRestrictionDescr.getIdentifier() + "'" ) );
                return null;
            }
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        FieldValue field = null;
        try {
            field = FieldFactory.getFieldValue( literalRestrictionDescr.getValue(),
                                                extractor.getValueType() );
        } catch ( final Exception e ) {
            context.getErrors().add( new RuleError( context.getRule(),
                                                    literalRestrictionDescr,
                                                    e,
                                                    "Unable to create a Field value of type  '" + extractor.getValueType() + "' and value '" + literalRestrictionDescr.getText() + "'" ) );
        }
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                        implicit = this.createDeclarationObject( context,
                                                                 parts[1],
                                                                 decl.getPattern() );

                    } else {
                        context.getErrors().add( new RuleError( context.getRule(),
                                                                qiRestrictionDescr,
                                                                "",
                                                                "Not possible to directly access the property '" + parts[1] + "' of declaration '" + parts[0] + "' since it is not a pattern" ) );
                        return null;
                    }
                }
            }
           
            if( implicit != null ) {
                final Evaluator evaluator = getEvaluator( context,
                                                          qiRestrictionDescr,
                                                          extractor.getValueType(),
                                                          qiRestrictionDescr.getEvaluator() );
                if ( evaluator == null ) {
                    return null;
                }

                return new VariableRestriction( extractor,
                                                implicit,
                                                evaluator );
            }
        }

        final int lastDot = qiRestrictionDescr.getText().lastIndexOf( '.' );
        final String className = qiRestrictionDescr.getText().substring( 0,
                                                                         lastDot );
        final String fieldName = qiRestrictionDescr.getText().substring( lastDot + 1 );
        try {
            final Class staticClass = context.getDialect().getTypeResolver().resolveType( className );
            field = FieldFactory.getFieldValue( staticClass.getField( fieldName ).get( null ),
                                                extractor.getValueType() );
        } catch ( final ClassNotFoundException e ) {
            // nothing to do, as it is not a class name with static field
        } catch ( final Exception e ) {
            context.getErrors().add( new RuleError( context.getRule(),
                                                    qiRestrictionDescr,
                                                    e,
                                                    "Unable to create a Field value of type  '" + extractor.getValueType() + "' and value '" + qiRestrictionDescr.getText() + "'" ) );
        }
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                extractor = context.getDialect().getClassFieldExtractorCache().getExtractor( ((ClassObjectType) objectType).getClassType(),
                                                                                             fieldName,
                                                                                             classloader );
            } catch ( final RuntimeDroolsException e ) {
                if ( reportError ) {
                    context.getErrors().add( new RuleError( context.getRule(),
                                                            descr,
                                                            e,
                                                            "Unable to create Field Extractor for '" + fieldName + "'" ) );
                }
            }
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                                   final String evaluatorString) {

        final Evaluator evaluator = valueType.getEvaluator( Operator.determineOperator( evaluatorString ) );

        if ( evaluator == null ) {
            context.getErrors().add( new RuleError( context.getRule(),
                                                    descr,
                                                    null,
                                                    "Unable to determine the Evaluator for  '" + valueType + "' and '" + evaluatorString + "'" ) );
        }
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        try {
            arrayExtractor = context.getDialect().getClassFieldExtractorCache().getExtractor( ((ClassObjectType) objectType).getClassType(),
                                                                                              "arguments",
                                                                                              classloader );
        } catch ( final RuntimeDroolsException e ) {
            context.getErrors().add( new RuleError( context.getRule(),
                                                    queryDescr,
                                                    e,
                                                    "Unable to create Field Extractor for 'getArguments'" ) );
        }

        String[] params = queryDescr.getParameters();
        String[] types = queryDescr.getParameterTypes();
        int i = 0;
        try {
        for ( i = 0; i < params.length; i++ ) {
            pattern.addDeclaration( params[i],
                                    new ArrayExtractor( arrayExtractor,
                                                        i,
                                                        context.getDialect().getTypeResolver().resolveType( types[i] ) ) );
        }
        } catch ( ClassNotFoundException e ) {
            context.getErrors().add( new RuleError( context.getRule(),
                                                    queryDescr,
                                                    e,
                                                    "Unable to resolve type '" + types[i] + " for parameter" + params[i] ) );           
        }
        return pattern;
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        final Boolean[] notPatterns = new Boolean[declarations.length];
        for ( int i = 0, length = declarations.length; i < length; i++ ) {
            indexes[i] = new Integer( list.indexOf( declarations[i] ) );
            notPatterns[i] = (declarations[i].getExtractor() instanceof PatternExtractor) ? new Boolean( false ) : new Boolean( true );
            if ( (indexes[i]).intValue() == -1 ) {
                context.getErrors().add( new RuleError( context.getRule(),
                                                        ruleDescr,
                                                        null,
                                                        "Internal Error : Unable to find declaration in list while generating the consequence invoker" ) );
            }
        }
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Related Classes of org.drools.compiler.RuleError

  • org.drools.integrationtests.MiscTest
  • org.drools.rule.builder.dialect.java.JavaConsequenceBuilder
  • org.drools.rule.builder.dialect.java.JavaDialect
  • org.drools.rule.builder.dialect.mvel.MVELConsequenceBuilder
  • org.drools.rule.builder.dialect.mvel.MVELDialect
  • org.drools.rule.builder.dialect.mvel.MVELEvalBuilder
  • org.drools.rule.builder.dialect.mvel.MVELFromBuilder
  • org.drools.rule.builder.dialect.mvel.MVELPredicateBuilder
  • org.drools.rule.builder.dialect.mvel.MVELSalienceBuilder
  • org.drools.rule.builder.PatternBuilder
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